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Model : markov1
Simile version : 3.1+
Date added : 2003-06-25
Keywords :
Land-use change ;
Markov model ;
Space is represented as a square grid. Each cell can be in one of two states (0 or 1). There is a probability p1 that a cell in state 0 will change to state 1, and a probability p2 that a cell in state 1 will change to state 0: p1 and p2 are constant. There is no interaction between neighbouring cells.
A practical handout, in pdf format, for using this and two other models of land-use dynamics is available here
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Equations in ../Desktop n1 = sum([state]) where: [state] = patch/state Equations in patch state = (if time(1) == 0 then 0 elseif prev(1) == 0 and rand_var(0,1)<0.1 then 1 elseif prev(1) == 1 and rand_var(0,1)<0.1 then 0 else prev(1)) column = fmod(index(1)-1,10)+1 row = 1
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